No signal shutdown

I understand my flat panel (in it’s settings) will shutdown if there is no signal. I am using nightly KodiSetup-20161116-db545c6-master and my Pioneer sc-55 and my flat panel shutdown now after about an hour. I had it set for 60 minutes and then screensaver………..that didn’t stop the shutdowns, I tried no screensaver that didn’t stop it either. What new settings am I missing?